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1932

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Resultados 1-6 de 6

Control of the Japanese beetle on fruit and shade trees Texto completo

1932

Van Leeuwen, E. R.

trees japanese beetle plant production (horticultural crops) pests of plants (insects and other arthropods) control diseases and pests fruit
National Agricultural Library - United States of America
Spraying program and pest control in the orchard

1932

ohio spraying and dusting in agriculture control diseases and pests fruit
National Agricultural Library - United States of America
Spraying fruit plants

1932

Pickett, W. F. (William Francis) | Filinger, G. A. (George Albert)

kansas spraying and dusting in agriculture control diseases and pests fruit
National Agricultural Library - United States of America
The fruit insect situation, 1931 : a radio talk by B.A. Porter, Bureau of Entomology, [U. S. Department of Agriculture]. Texto completo

1932

Porter, B. A. (Bennet Allen),, 1892-

management orchards diseases and pests fruit radio scripts spraying and dusting in agriculture control
The Biodiversity Heritage Library - United Kingdom
The fruit insect situation, 1931 : a radio talk by B.A. Porter, Bureau of Entomology, [U. S. Department of Agriculture] Texto completo

1932

Porter, B. A. (Bennet Allen),

management orchards radio scripts control spraying and dusting in agriculture diseases and pests united states fruit
The Biodiversity Heritage Library - United Kingdom
Directions for spraying fruits in Illinois

1932

illinois collection spraying and dusting in agriculture control plant taxonomy and geography diseases and pests fruit
National Agricultural Library - United States of America